RT Journal Article SR Electronic T1 169Yb-DTPA Cisternography: How Many Rads Does the Brain Receive? JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 643 OP 643 VO 15 IS 7 A1 Alazraki, Naomi A1 Hurwitz, Sheldon A1 Halpern, Samuel E. A1 Ashburn, William L. YR 1974 UL http://jnm.snmjournals.org/content/15/7/643.abstract AB